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36 lines
746 B
36 lines
746 B
4 months ago
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// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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// pthread barriers are not available on OS X
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// UNSUPPORTED: darwin
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#include <pthread.h>
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#include <stdio.h>
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#include <stddef.h>
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#include <unistd.h>
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pthread_barrier_t B;
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int Global;
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void *Thread1(void *x) {
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if (pthread_barrier_wait(&B) == PTHREAD_BARRIER_SERIAL_THREAD)
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pthread_barrier_destroy(&B);
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return NULL;
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}
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void *Thread2(void *x) {
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if (pthread_barrier_wait(&B) == PTHREAD_BARRIER_SERIAL_THREAD)
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pthread_barrier_destroy(&B);
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return NULL;
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}
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int main() {
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pthread_barrier_init(&B, 0, 2);
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pthread_t t;
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pthread_create(&t, NULL, Thread1, NULL);
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Thread2(0);
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pthread_join(t, NULL);
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return 0;
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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